Rover, Grant’s new book will feature illuminating portraits of dogs of all stripes and spots. Dogs of a few celebs will also grace its pages.

Andrew says his goal is to raise money and awareness for pet shelters and rescue organizations, and to promote adoption. Click here to find out details about how he does this, and where the casting call will be this weekend. (Psst: If you have a spare $500, you may be able to buy your dog’s way into the book.)